Like standard efficiency gas furnaces, oil-burning furnaces also feature a combustion chamber, heat exchanger and exhaust ...

A furnace heat exchanger keeps dangerous gases out of the air circulating in the building. It's a must-have on any furnace that burns gas or oil.

The chamber of the furnace is built out of a water heater tank ... They are good for burning waste oil to achieve high heats. A scrap Volkswagen oil pump and a cordless drill are used to feed ...